Revolver and similar arm



C. P. PINTO. REVOLVER AND SIMILAR ARM.

APPLICATION FIL'ED NOV. 22, 1919.

. 2,923. Patented Ju es, 1920.

[$71105 Zrez'ra 232% and hence the discharge of'the cartridge, is'

CARLOS rnnnrnn'rm'ro, or BUEnosj A IiaEs, A GENTINA; I v i To all whom it map concerns? Be it kno'wn that LCARLos PEREIRA Pm'ro, citizen of the Brazilian Republic, residing at 629 Rec'onquista ;street," Buenos Aires, Ar-

gentina, have invented certain new and use; ful Improvementsin Revolvers and Siinll'ar -Arms, of whichthe'following is'a specifica tion. I r

V This invention relates to certain improvements in revolvers and similar arms, and

has for its objectto provide a suitablemeans adapted to securethe'aim by avolding. the trouble caused-by the muscular effort exerted at the instant of firing.

It is a well known fact that in connection with revolvers,"firin'g is performed by exerting ,mus'cular pressureon the trigger which by receding, causesthe rise of the percussion cock and its immediate release or fall, in onegsingle movement, bytheaetion d of he pr 'gs hic p rateto p r the same.- This muscular effort causes the gun V to move so as to deviate the aim at thevery instant of firing." When effecting several consecutlve discharges, the above IIlGIltlOIlQCl deviating movement is even increased by the movement caused by the recoil of the gun,

owing to the explosion of thecartridges.-

This objectionablefeature inherent in the revolvers'actually in use, is eliminated by my invention which essentiallyconsists in making useof a double action in firing, the

latter being effected by two separate or in dependent. operations, that isto say, by the first operation which requires a strongmuscular effort to be exerted on the trigger, the

percussion cock-is raised to its highest POSI- tion in which it remainslocked, and by the second operationwhich only requires a very gentle pressure to be applied to the trigger,

the 'fallor release of saidpercussion cock,

the only result obtained at this first step of the operation, is, that thetrigger will"be caused to travel along its 'entire stroke,

thereby carrying the percussion cock tofits highest position where it remains locked; in consequence, by this single operation, the

Y discharge cannot take place. In order to obvtain the release or disengagementjof'the' percussion cock to cause firing, it will be necessary to relieve the pressure applied to cause the percussion cock to fall and fire, Q In consequence, it'fol'lows thatwheniper I forming the heavy muscular eifort whi'clr first pressure applied to thetrig}.

' f iliiivoLvEn-mn M A' f sp fi a fleticrs at n Patented.Juries-1920. i Application led novembe'r 22, 1919. Serial 110,339,889.-

turning to its" initial position; thereupon, a

slight pressure applied-to said trigger, will moves the gun and interferes with aiming,

- "firing does not, and cannot, occur-, but, the gun 'is simply prepared'for firing. The oper ation proper-of firing-the cartridge only requires a simple-"pressure on the trigger 1 Y wh1chbe1ng very gentle,f'do es notcause any movement of the gun.

Besides the, advantage of enabling the shooter to'secure the aim,this invention af- I fords a greaterseouri ty in the handling of the gun since itbecomesabsolutely impossible' that discharge should result from a first or initial-pressure applied to the trigger.

. The peroussioncockmay also be raised by carryingthesame by hand to its'highest, or it locked'position, and it -may also be lowered" V slowly, by holding the trigger with the hand.

This invention does not specially relate to any particular mechanical arrangement, but I conslsts 1n the adoptlon of means,wh1ch when operated bygthe pressure exerted on the'trigger, raises the percussion cock and carries the same to the highest point ofits travel where it remains locked or engagedylon relieving the pressure from the trigger, this. latter will return to its forward position,

whereupon, a further pressure applied thereto will disengage the percussion cock to allow the same to fall and fire the cartridge.

a The invention may be applied to any,

known or novel type of revolver by providing the same with the necessary additional .parts 'or by modifying the parts already ex istent in order to obtain the desired results.

, A preferred embodiment of this invention isshown by 'way of example in the accompanying drawings, in which":

" Figure 1' 'llustrates .the firing mechanism revolver being-provided with the necessary ing'the present invention into practice.

s of a revolver" of well-known "construction,

'withthe parts in their normal-position, said sion cock withthe" auxiliary 'parts',accord e ing to this-vinventionrinthe position .in.,; hich the trigger commences'to actuate th .percusslon cock.v I, V

r Fig. 3 is a similar view, showing the 'perg cusslon cockln a somewhat more If11S6d'p v sition bvtheaction of the trigger, at the Inoment at which itcommences to strike against V 7 p p A spring. 12- tends 'to'hold the-said lever flf the locking piece of the percussionicook, j Fig; 4 shows the percussion cock locked in itsraised position and the locking piece or catch prepared for disengagement by a further, "operation on the trigger 'which 7 meantime has moved rf orwardto assume its initial position. 7 V

Fig. 5 illustrates the second stage of the operation of thetrigger at the instant in which the percussion cock is disengaged and i i i In all the-said the same numbers 15 of reference indicate like or corresponding parts." 7 Y 1 is the percussion cock provided at its tail j-endwithz an'abut'me'nt 2 and'a projec- 'tion 3, for ajpurposeshereinaftertoibeexplained. tie, the trigger, provided with its corresponding spring 5 which tends to main tain the same in its normal position; On said trigger is formed an operative projection 6, intended to raise the percussion'cock by placing itself below the abutment 2, and a notch 7' within which engages the operating lever S, pivoted at,9, whose opposite end is pro'- vided with a notch 10 into which entersthe projection 3 of the tail of the'vper cussion cock, .for'the purpose of locking the latter inits raised position after the first or preliminar the device is deemed unnecessary; as

'to the illustrative drawings;

gle pull to directly engageithehannner rock it into. cocked position, and at them and returnto nonnal positiongfanda locking the-hammer when theklatter 'moves engaged and operated by the triggenwhn said locking member is released from the? its actuating. spring. 7

y mqvement of tiiai g g gg performed." j V in its uppermost positionpby the end which the notch has been formed, L 'A detailed description 'of the working 0 same. willbe readily understood by. referring V I now declare that what Iclaimanddosim to secure, byLetters Patent, is p i In a fire arm, the combination of a spring actuated hammer a spring-controlled trig ger adaptedatjthe commencement} of. mail! ii clusion of such pull to release the hammer member adapted to automatioally v e 5 cocked position so asto hold it'in that tion; said; locking member beingdirectly the latter is pulled a second time', wherebyi iii hammento permit automatic :firing move,- ment of, the hammer under the influence; of

In testimony whereof l afiix 1 oABLosjPEREIRA-'riNro; 

